And of course #TSOE - with #ISPF. The TSO commands however look still very familiar. Same with procedures/modules in SYS1.PROCLIB, even with the #IEFBR14 "do nothing" program still very useful in #JCL.

The University of Konstanz still had a #Comparex IBM compatible mainframe running, and I wrote a better version of the existing IRC client in REXX. I added the file transfer functions and fixed the EBCDIC-ASCII conversion. Those were the times.